Hydrobiological Journal

Seasonal Changes in GIucose-6-phosphate Dehydrogenase Activity in the Tissues of Black Sea Mussel

O. S. RusinovaKaradag Branch, Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine, Sevastopol, Ukraine

SINOPSIS

Studies have been made on the glucose-6-phosphate dehydrogenase (G6PDH) activity in the tissues of mussels during 48-hours exposure to air at 5, 15 and 25°C. In winter, the G6PDH activity in Mytilus galloprovincialis increased by 20−60% during 48 h exposure to air as compared to the control level, but, on the contrary, in summer this enzymic activity decreased by 30−40%. When the mussels were kept at 5 and 15°C, the G6PDH activity recovered to a control level in 24 hours. Dynamics of the protein contents was opposite to the dynamics of the G6PDH activity.